Demanding answers during a townhall meeting with company officials, dozens of locals say their homes and cars were coated with dust after Wednesday’s blast, which was strong enough to register as a magnitude 1.7 earthquake.

Documents from the California Division of Occupational Safety and Health indicate that the Torrance Exxon Mobil refinery where a blast took place on Wednesday has faced more than $100,000 in proposed penalties for inspection violations over the past five years.